1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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17,271 Posts
The input and output speed sensor are connected to the TCM, not the PCM. The TCM does put vehicle speed information out on the bus for the PCM, Cluster and other modules to use.
Is the PCM 5 volt line up with the key on? Does the 'ck eng' light come on and are there any fault codes?
If the vehicle has SKIM or VTSS, the new PCM would need the 4-digit secret key code entered to validate it. It would not be plug n'play.
Jumping into a new PCM too quickly is not good diagnostic practice, especially if it still doesn't start. It needs more diagnosis with a good scan tool to see what is going on.
Is the PCM 5 volt line up with the key on? Does the 'ck eng' light come on and are there any fault codes?
If the vehicle has SKIM or VTSS, the new PCM would need the 4-digit secret key code entered to validate it. It would not be plug n'play.
Jumping into a new PCM too quickly is not good diagnostic practice, especially if it still doesn't start. It needs more diagnosis with a good scan tool to see what is going on.